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EP0428893A2 - Printing unit - Google Patents

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Publication number
EP0428893A2
EP0428893A2 EP90120395A EP90120395A EP0428893A2 EP 0428893 A2 EP0428893 A2 EP 0428893A2 EP 90120395 A EP90120395 A EP 90120395A EP 90120395 A EP90120395 A EP 90120395A EP 0428893 A2 EP0428893 A2 EP 0428893A2
Authority
EP
European Patent Office
Prior art keywords
printing unit
cylinder
layer
unit according
temperature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP90120395A
Other languages
German (de)
French (fr)
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EP0428893B1 (en
EP0428893A3 (en
Inventor
Thomas John
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
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Publication date
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0428893A2 publication Critical patent/EP0428893A2/en
Publication of EP0428893A3 publication Critical patent/EP0428893A3/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/26—Construction of inking rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N7/00—Shells for rollers of printing machines
    • B41N7/06—Shells for rollers of printing machines for inking rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N2207/00—Location or type of the layers in shells for rollers of printing machines
    • B41N2207/02—Top layers

Definitions

  • the invention relates to a printing unit for a printing press having a cylinder which is provided with a cup and cooperates with a squeegee.
  • the invention has for its object to design a printing unit so that the amount of ink guided by the cylinder can be changed without wear.
  • the gravure forme cylinder 1 has an intaglio printing cylinder 1 and an impression cylinder 2, between which the web 3 to be printed is passed.
  • the gravure forme cylinder 1 is partially immersed in an ink pan 4.
  • a doctor blade 5 can be placed on the gravure forme cylinder 1.
  • the gravure forme cylinder 1 has, cf. 3 and 4 on a metallic core 6, on which a porous, volume-changing intermediate layer 7 is applied, for example by plasma spraying.
  • a layer 8 made of a material with a temperature-dependent shape memory is applied to the outside of the intermediate layer 6.
  • Materials with a temperature-dependent shape memory can be constructed on a metallic basis, as described, for example, in the "Southren" magazine in 1987, pages 58 to 61 and 70 to 73, or be constructed on a plastic basis, as described in the "highTech” magazine, issue 4 / 1989 are described.
  • a temperature control device 9 is provided in front of the circumference of the gravure forme cylinder 1.
  • the temperature control device 9 has As shown schematically in Fig. 2, a plurality of heating elements 10 arranged side by side in the form of very small resistors. The structure of such heat sources is described in the journal "Feintechnik und Meßtechnik” 95 (1987) 7 pages 433 to 435.
  • 3 shows that a multiplicity of cups 11 have been introduced into the layer 8. This can be done, for example, by metting, that is to say a non-cutting deformation of the gravure cylinder 1.
  • 3 shows the shape of the layer 8 in a first shape state.
  • a heating element 10 is assigned to each row of cups 11 rotating in the circumferential direction, as is shown schematically in FIG. 2. If a heating element 10 is switched on, it heats the area of a well 11 of the layer 8. The layer 8 consequently deforms in this area and assumes the second shape state shown in FIG. 4, in which the respective well 11 disappears and the layer 8 forms a section of a cylinder jacket in the area of the well.
  • the porous intermediate layer 7 ensures that the outer diameter of the gravure cylinder 1 does not change during the transition from one to the other.
  • a heating element 10 By gradually rotating the rotogravure form cylinder 1, one or all of the wells 11 of a row of wells can thus be subjected to heat from a heating element 10 one after the other.
  • Fig. 2 shows that with this arrangement it is possible both to delete an entire row of cells rotating in the circumferential direction and to alternately leave cells 11 open in the circumferential direction and to delete adjacent cells.
  • a well configuration which is adapted to the subject to be printed can be produced in layer 8 of rotogravure forme cylinder 1.
  • the change in the shape of a material with temperature-dependent shape memory is plotted against the temperature.
  • the line a shows that the first shape state F 1 is maintained until a temperature T 1 is reached.
  • T 2 At a higher temperature T 2 is the second Shape state F 2 reached.
  • the second shape state F 2 remains until a temperature T 3, which is below the temperatures T 1 and T 2, is maintained.
  • the first shape state F 1 is only reached again when the temperature T 4 is cooled further.
  • the given shape state remains unchanged. If the range of the usual working temperatures ⁇ T * of the printing press lies within the range ⁇ T, the shape of the area in the area of each individual well remains unchanged during the operation of the printing press.
  • a blanket cylinder 20, a plate cylinder 21 which can be covered with an offset printing plate, an application roller 22 with a flexible ink-accepting surface and a cylinder 23 serving as anilox roller are provided.
  • a dampening unit 24 can be set on the plate cylinder 21.
  • the anilox roller 23 is supplied with ink by a chamber doctor blade 25.
  • a temperature control device 26 is also arranged at a free location on the circumference of the cylinder 23.
  • the temperature control device 26 consists of a resistance heating element which extends over the entire width of the cylinder 23. If desired, the heating element can also be divided into zones that can be switched on and off individually. Basically, there is also the possibility of using a temperature control device according to FIG. 1. A given control of individual cells is not always necessary with anilox rollers.
  • the cylinder 23 has a hard metallic core 27 to which a layer 28 made of a material with a temperature-dependent shape memory is applied.
  • the layer 28 is expediently applied as a porous layer by plasma spraying. After it has been applied by chipless shaping with a cup 29, cf. Fig. 7 provided. This ensures at the same time that the outside of the layer 28 passes through closed.
  • the wells are introduced in a state defining the first shape Temperature T 4. Then the temperature of the layer 28 is brought to the value T 2, at which it assumes the second shape. Then the cup 29 'of the second shape is given the desired final shape. This can again be done, for example, by mettling.
  • the inner porosity of the layer 28 in the first shape state is necessary in order to prevent a change in the outer diameter upon transition to the second shape state.
  • the cylinder 30 is rotatably mounted on a fixed axis 31 and in turn has a porous layer 33 made of a material with a temperature-dependent shape memory that is applied to a metallic core 32. Cups 34 are introduced into the layer 33.
  • the cylinder 30 has an inner cavity 35 which is connected to a water circuit 38 via bores 36, 37.
  • a heat exchanger 39 in which the water flowing through can be cooled.
  • a feed pump 40 is also provided in the water circuit 38.
  • a second heat exchanger can also be provided to increase the temperature of the water cycle.
  • the layer 33 is guided from one to the other by heating the circulating water of the water circuit 38.
  • the water of the water cycle can be cooled or the temperature for reaching the first shape is such that it is reached automatically after the printing machine is switched off.
  • a porous layer 51 made of a material with a temperature-dependent shape memory is applied to a hard core 50 of a cylinder, as is the case with the arrangement according to FIGS. 7 and 8. Cups are provided in layer 51, which are in the first shape 53 and are designated in the second form with 53 '.
  • a wear protection layer 52 is applied to the outside of the layer 51.
  • the wear protection layer 52 is only a few ⁇ m thick and suitably consists of TiN, TiAlN or TiCN.
  • FIG. 12 A further variant is shown in FIG. 12.
  • depressions 61 are machined into the outer surface of a hard core 60 of a cylinder.
  • the layer 62 made of a material with a temperature-dependent shape memory is designed as a thin-walled sleeve applied to the core.
  • the layer 62 thus forms part of a cylinder jacket.
  • wells 63 are formed in the area of the depressions 61.
  • the depressions 61 are dimensioned such that they accommodate the layer 62 forming the wells 63.
  • This configuration is not only suitable for anilox rollers but also for gravure cylinders. Basically, in this variant there is also the possibility that the layer 62 forms flatter cells in the first shape, as is the case with the arrangement according to FIGS. 7 and 8. Then it can be used for anilox rollers.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Printing Methods (AREA)

Abstract

Ein Druckwerk für eine Druckmaschine weist einen mit Näpfchen versehenen, mit einer Rakel zusammenwirkenden, farbführenden Zylinder auf. Auf den Kern des Zylinders ist zumindest eine die Näpfchen enthaltende Schicht aus einem Werkstoff mit einem temperaturabhängigen Formgedächtnis aufgebracht. Zur Veränderung der Näpfchengröße ist weiterhin eine ein- und ausschaltbare Temperiereinrichtung für den Mantel vorgesehen.

Figure imgaf001
A printing unit for a printing press has an ink-carrying cylinder which is provided with cups and cooperates with a doctor blade. At least one layer containing the cells made of a material with a temperature-dependent shape memory is applied to the core of the cylinder. To change the size of the cells, a temperature control device for the jacket that can be switched on and off is also provided.
Figure imgaf001

Description

Die Erfindung betrifft ein Druckwerk für eine Druckmaschine mit einem mit Näpfchen versehenen, mit einer Rakel zusammenwirkenden, farbführenden Zylinder.The invention relates to a printing unit for a printing press having a cylinder which is provided with a cup and cooperates with a squeegee.

Der Erfindung liegt die Aufgabe zugrunde ein Druckwerk so auszubilden, daß die Menge der vom Zylinder geführten Farbe verschleißfrei verändert werden kann.The invention has for its object to design a printing unit so that the amount of ink guided by the cylinder can be changed without wear.

Erfindungsgemäß wird dies durch Anwendung der Merkmale des Kennzeichens des Anspruchs 1 erreicht.According to the invention, this is achieved by applying the features of the characterizing part of claim 1.

Bei Anwendung der Erfindung ergibt sich der zusätzliche Vorteil, daß auch die Verteilung der Farbe entlang des Umfangs des Zylinders verändert werden kann.When using the invention there is the additional advantage that the distribution of the color along the circumference of the cylinder can also be changed.

Mehrere Ausführungsbeispiele der Erfindung sind anhand der Zeichnung beschrieben. Auf dieser zeigt

  • Fig. 1 ein Tiefdruckwerk in einer schematischen Seitenansicht,
  • Fig. 2 eine schematische Ansicht des Tiefdruckformzylinders nach Fig. 1 von oben,
  • Fig. 3 einen Ausschnitt aus dem Zylinder nach Fig. 2 in einem ersten Formzustand,
  • Fig. 4 den Ausschnitt nach Fig. 3 in einem zweiten Formzustand
  • Fig. 5 ein Diagramm,
  • Fig. 6 eine schematische Darstellung eines Offsetdruckwerkes in einer Seitenansicht,
  • Fig. 7 einen Ausschnitt aus der Rasterwalze nach Fig. 6 in vergrößertem Maßstab in einem ersten Formzustand,
  • Fig. 8 einen Fig. 7 entsprechenden Ausschnitt in einem zweiten Formzustand,
  • Fig. 9 eine Rasterwalze in einem Querschnitt,
  • Fig. 10 einen Längsschnitt durch die Rasterwalze gemäß Fig. 9 und
  • Fig. 11 und 12 jeweils zwei Ausschnitte weiterer Ausführungsformen von Zylindern.
Several embodiments of the invention are described with reference to the drawing. On this shows
  • 1 is a gravure printing unit in a schematic side view,
  • 2 is a schematic view of the rotogravure form cylinder according to FIG. 1 from above,
  • 3 shows a detail from the cylinder according to FIG. 2 in a first shape state,
  • Fig. 4 shows the detail of Fig. 3 in a second shape
  • 5 is a diagram,
  • 6 shows a schematic illustration of an offset printing unit in a side view,
  • 7 shows a detail from the anilox roller according to FIG. 6 on an enlarged scale in a first shape state,
  • 8 shows a section corresponding to FIG. 7 in a second shape,
  • 9 is an anilox roller in a cross section,
  • 10 shows a longitudinal section through the anilox roller according to FIGS. 9 and
  • 11 and 12 each two sections of further embodiments of cylinders.

Das Druckwerk gemäß Fig. 1 weist einen Tiefdruckformzylinder 1 und einen Gegendruckzylinder 2 auf, zwischen denen die zu bedruckende Bahn 3 hindurchgeführt ist. Der Tiefdruckformzylinder 1 taucht partiell in eine Farbwanne 4 ein. An den Tiefdruckformzylinder 1 ist eine Rakel 5 anstellbar.1 has an intaglio printing cylinder 1 and an impression cylinder 2, between which the web 3 to be printed is passed. The gravure forme cylinder 1 is partially immersed in an ink pan 4. A doctor blade 5 can be placed on the gravure forme cylinder 1.

Der Tiefdruckformzylinder 1 weist, vgl. Fig. 3 und 4 einen metallischen Kern 6 auf, auf den eine poröse, volumenveränderbare Zwischenschicht 7, beispielsweise durch Plasmasprühen aufgetragen ist. Auf die Zwischenschicht 6 ist außen eine Schicht 8 aus einem Werkstoff mit einem temperaturabhängigen Formgedächtnis aufgebracht. Werkstoffe mit einem temperaturabhängigen Formgedächtnis können auf metallischer Basis aufgebaut sein, wie sie beispielsweise in der Zeitschrift "Maschinenmarkt" 1987, Seiten 58 bis 61 und 70 bis 73 beschrieben sind oder auf Kunststoffbasis aufgebaut sein, wie sie in der Zeitschrift "highTech" Heft 4/1989 beschrieben sind.The gravure forme cylinder 1 has, cf. 3 and 4 on a metallic core 6, on which a porous, volume-changing intermediate layer 7 is applied, for example by plasma spraying. A layer 8 made of a material with a temperature-dependent shape memory is applied to the outside of the intermediate layer 6. Materials with a temperature-dependent shape memory can be constructed on a metallic basis, as described, for example, in the "Maschinenmarkt" magazine in 1987, pages 58 to 61 and 70 to 73, or be constructed on a plastic basis, as described in the "highTech" magazine, issue 4 / 1989 are described.

Vor dem Umfang des Tiefdruckformzylinders 1 ist eine Temperiereinrichtung 9 vorgesehen. Die Temperiereinrichtung 9 weist, wie in Fig. 2 schematisch gezeigt, eine Vielzahl von nebeneinander angeordneten Heizelementen 10 in Form sehr kleiner Widerstände auf. Der Aufbau derartiger Wärmequellen ist in der Zeitschrift "Feinwerktechnik und Meßtechnik" 95(1987)7 Seiten 433 bis 435 beschrieben.A temperature control device 9 is provided in front of the circumference of the gravure forme cylinder 1. The temperature control device 9 has As shown schematically in Fig. 2, a plurality of heating elements 10 arranged side by side in the form of very small resistors. The structure of such heat sources is described in the journal "Feinwerktechnik und Meßtechnik" 95 (1987) 7 pages 433 to 435.

Fig. 3 zeigt, daß in die Schicht 8 eine Vielzahl von Näpfchen 11 eingebracht ist. Dies kann beispielsweise durch Molettieren, also eine spanlose Verformung des Tiefdruckformzylinders 1 erfolgen. Fig. 3 gibt die Form der Schicht 8 in einem ersten Formzustand wieder. Jeder in Umfangsrichtung umlaufenden Reihe von Näpfchen 11 ist in der Temperiereinrichtung 9 ein Heizelement 10 zugeordnet, wie in Fig. 2 schematisch dargestellt ist. Wird ein Heizelement 10 eingeschaltet, so erwärmt es den Bereich eines Näpfchens 11 der Schicht 8. Die Schicht 8 verformt sich infolgedessen in diesem Bereich und nimmt den in Fig. 4 wiedergegebenen zweiten Formzustand ein, in der das jeweilige Näpfchen 11 verschwindet und die Schicht 8 im Bereich des Näpfchens einen Abschnitt eines Zylindermantels bildet. Dabei stellt die poröse Zwischenschicht 7 sicher, daß sich der Außendurchmesser des Tiefdruckformzylinders 1 beim übergang von dem einen in den anderen Formzustand nicht ändert. Durch schrittweises Drehen des Tiefdruckformzylinders 1 können somit nacheinander einige oder alle Näpfchen 11 einer Näpfchenreihe von einem Heizelement 10 mit Wärme beaufschlagt werden. Fig. 2 zeigt, daß es mit dieser Anordnung sowohl möglich ist, eine gesamte in Umfangsrichtung umlaufende Näpfchenreihe zu löschen als auch in Umfangsrichtung abwechselnd Näpfchen 11 offen zu lassen und benachbarte Näpfchen zu löschen. Hierdurch kann somit eine dem zu druckenden Sujet angepaßte Näpfchenkonfiguration in der Schicht 8 des Tiefdruckformzylinders 1 erzeugt werden.3 shows that a multiplicity of cups 11 have been introduced into the layer 8. This can be done, for example, by metting, that is to say a non-cutting deformation of the gravure cylinder 1. 3 shows the shape of the layer 8 in a first shape state. A heating element 10 is assigned to each row of cups 11 rotating in the circumferential direction, as is shown schematically in FIG. 2. If a heating element 10 is switched on, it heats the area of a well 11 of the layer 8. The layer 8 consequently deforms in this area and assumes the second shape state shown in FIG. 4, in which the respective well 11 disappears and the layer 8 forms a section of a cylinder jacket in the area of the well. The porous intermediate layer 7 ensures that the outer diameter of the gravure cylinder 1 does not change during the transition from one to the other. By gradually rotating the rotogravure form cylinder 1, one or all of the wells 11 of a row of wells can thus be subjected to heat from a heating element 10 one after the other. Fig. 2 shows that with this arrangement it is possible both to delete an entire row of cells rotating in the circumferential direction and to alternately leave cells 11 open in the circumferential direction and to delete adjacent cells. As a result, a well configuration which is adapted to the subject to be printed can be produced in layer 8 of rotogravure forme cylinder 1.

Im Diagramm nach Fig. 5 ist die Anderung des Formzustandes eines Werkstoffs mit temperaturabhängigem Formgedächtnis über der Temperatur aufgetragen. Der Linienzug a zeigt, daß der erste Formzustand F 1 bis zum Erreichen einer Temperatur T 1 erhalten bleibt. Bei einer höheren Temperatur T 2 ist dann der zweite Formzustand F 2 erreicht. Wie der Linienzug b zeigt, bleibt der zweite Formzustand F 2 bis zum Erreichen einer Temperatur T 3, die unter den Temperaturen T 1 und T 2 liegt, erhalten. Erst bei weiterer Abkühlung auf die Temperatur T 4 wird der erste Formzustand F 1 wieder erreicht. Zwischen den Temperaturen T 1 und T 3, also im Abschnitt ΔT, bleibt somit der jeweils gegebene Formzustand unverändert beibehalten. Liegt der Bereich der üblichen ArbeitstemperaturenΔT* der Druckmaschine innerhalb des Bereichs ΔT,so bleibt der Formzustand im Bereich jedes einzelnen Näpfchens während des Betriebs der Druckmaschine unverändert.In the diagram according to FIG. 5, the change in the shape of a material with temperature-dependent shape memory is plotted against the temperature. The line a shows that the first shape state F 1 is maintained until a temperature T 1 is reached. At a higher temperature T 2 is the second Shape state F 2 reached. As the line b shows, the second shape state F 2 remains until a temperature T 3, which is below the temperatures T 1 and T 2, is maintained. The first shape state F 1 is only reached again when the temperature T 4 is cooled further. Between the temperatures T 1 and T 3, that is to say in the section ΔT, the given shape state remains unchanged. If the range of the usual working temperatures ΔT * of the printing press lies within the range ΔT, the shape of the area in the area of each individual well remains unchanged during the operation of the printing press.

Beim Druckwerk gemäß Fig. 6 sind ein Gummituchzylinder 20, ein mit einer Offsetdruckplatte belegbarer Plattenzylinder 21, eine Auftragwalze 22 mit nachgiebiger farbannehmender Oberfläche und ein als Rasterwalze dienender Zylinder 23 vorgesehen. An den Plattenzylinder 21 ist ein Feuchtwerk 24 anstellbar. Die Rasterwalze 23 wird von einer Kammerrakel 25 mit Farbe versorgt. An einer freien Stelle des Umfangs des Zylinders 23 ist weiterhin eine Temperiereinrichtung 26 angeordnet. Die Temperiereinrichtung 26 besteht aus einem über die ganze Breite des Zylinders 23 durchlaufenden Widerstandsheizstab. Falls gewünscht, kann der Heizstab auch in zonenbreite einzeln ein- und ausschaltbare Abschnitte unterteilt sein. Grundsätzlich besteht hier auch die Möglichkeit, eine Temperiereinrichtung entsprechend Fig. 1 zu verwenden. Eine damit gegebene Ansteuerung einzelner Näpfchen ist aber bei Rasterwalzen nicht immer erforderlich.6, a blanket cylinder 20, a plate cylinder 21 which can be covered with an offset printing plate, an application roller 22 with a flexible ink-accepting surface and a cylinder 23 serving as anilox roller are provided. A dampening unit 24 can be set on the plate cylinder 21. The anilox roller 23 is supplied with ink by a chamber doctor blade 25. A temperature control device 26 is also arranged at a free location on the circumference of the cylinder 23. The temperature control device 26 consists of a resistance heating element which extends over the entire width of the cylinder 23. If desired, the heating element can also be divided into zones that can be switched on and off individually. Basically, there is also the possibility of using a temperature control device according to FIG. 1. A given control of individual cells is not always necessary with anilox rollers.

Der Zylinder 23 weist, wie die Fig. 7 und 8 zeigen, einen harten metallischen Kern 27 auf, auf den eine Schicht 28 aus einem Werkstoff mit einem temperaturabhängigen Formgedächtnis aufgebracht ist. Die Schicht 28 ist als poröse Schicht zweckmäßig durch Plasmasprühen aufgebracht. Sie wird nach ihrem Aufbringen durch spanlose Verformung mit Näpfchen 29, vgl. Fig. 7, versehen. Hierdurch wird gleichzeitig sichergestellt, daß die Außenseite der Schicht 28 geschlossen durchläuft. Das Einbringen der Näpfchen erfolgt dabei bei einer den ersten Formzustand definierenden Temperatur T 4. Anschließend wird die Temperatur der Schicht 28 auf den Wert T 2 gebracht, bei der sie den zweiten Formzustand annimmt. Hierauf wird den Näpfchen 29′ des zweiten Formzustandes die gewünschte endgültige Form gegeben. Dies kann wiederum beispielsweise durch Molettieren erfolgen. Die innere Porosität der Schicht 28 im ersten Formzustand ist hierbei erforderlich, um eine Veränderung des Außendurchmessers bei Obergang zum zweiten Formzustand zu verhindern.7 and 8, the cylinder 23 has a hard metallic core 27 to which a layer 28 made of a material with a temperature-dependent shape memory is applied. The layer 28 is expediently applied as a porous layer by plasma spraying. After it has been applied by chipless shaping with a cup 29, cf. Fig. 7 provided. This ensures at the same time that the outside of the layer 28 passes through closed. The wells are introduced in a state defining the first shape Temperature T 4. Then the temperature of the layer 28 is brought to the value T 2, at which it assumes the second shape. Then the cup 29 'of the second shape is given the desired final shape. This can again be done, for example, by mettling. The inner porosity of the layer 28 in the first shape state is necessary in order to prevent a change in the outer diameter upon transition to the second shape state.

Zum Abkühlen und zur Rückführung auf den Ausgangszustand besteht weiterhin die Möglichkeit, als Rasterwalze einen Zylinder 30 gemäß Fig. 9 und 10 zu verwenden. Der Zylinder 30 ist drehbar auf einer festen Achse 31 gelagert und weist wiederum eine auf einen metallischen Kern 32 aufgebrachte poröse Schicht 33 aus einem Werkstoff mit temperaturabhängigen Formgedächtnis auf. In die Schicht 33 sind Näpfchen 34 eingebracht. Der Zylinder 30 weist einen Innenhohlraum 35 auf, der über Bohrungen 36, 37 an einen Wasserkreislauf 38 angeschlossen ist. Im Wasserkreislauf 38 befindet sich ein Wärmetauscher 39, in dem das durchfließende Wasser abkühlt werden kann. Zur Aufrechterhaltung des Durchflusses ist im Wasserkreislauf 38 weiterhin eine Förderpumpe 40 vorgesehen. Falls erforderlich, kann neben diesem Wärmetauscher 39 noch ein zweiter Wärmetauscher zur Erhöhung der Temperatur des Wasserkreislaufes vorgesehen sein. Bei letzterer Ausführung wird eine Oberführung der Schicht 33 vom einen in den anderen Formzustand durch Erwärmen des umlaufenden Wassers des Wasserkreislaufes 38 bewirkt. Zur Rückführung in den ersten Formzustand kann dann entweder das Wasser des Wasserkreislaufes gekühlt werden oder die Temperatur zum Erreichen des ersten Formzustandes liegt so, daß sie automatisch nach dem Abstellen der Druckmaschine erreicht wird.For cooling and returning to the initial state, there is also the possibility of using a cylinder 30 as shown in FIGS. 9 and 10. The cylinder 30 is rotatably mounted on a fixed axis 31 and in turn has a porous layer 33 made of a material with a temperature-dependent shape memory that is applied to a metallic core 32. Cups 34 are introduced into the layer 33. The cylinder 30 has an inner cavity 35 which is connected to a water circuit 38 via bores 36, 37. In the water circuit 38 there is a heat exchanger 39 in which the water flowing through can be cooled. To maintain the flow, a feed pump 40 is also provided in the water circuit 38. If necessary, in addition to this heat exchanger 39, a second heat exchanger can also be provided to increase the temperature of the water cycle. In the latter embodiment, the layer 33 is guided from one to the other by heating the circulating water of the water circuit 38. To return to the first shape, either the water of the water cycle can be cooled or the temperature for reaching the first shape is such that it is reached automatically after the printing machine is switched off.

Fig. 11 zeigt eine weitere Beschichtung. Hier ist auf einen harten Kern 50 eines Zylinders eine poröse Schicht 51 aus einem Werkstoff mit einem temperaturabhängigen Formgedächtnis aufgebracht, sowie dies bei der Anordnung nach Fig. 7 und 8 der Fall ist. In der Schicht 51 sind Näpfchen vorgesehen, die im ersten Formzustand mit 53 und im zweiten Formzustand mit 53′ bezeichnet sind. Zusätzlich ist außen auf die Schicht 51 eine Verschleißschutzschicht 52 aufgebracht. Die Verschleißschutzschicht 52 ist nur wenige µ dick und besteht zweckmäßig aus TiN, TiAlN oder TiCN.11 shows a further coating. Here, a porous layer 51 made of a material with a temperature-dependent shape memory is applied to a hard core 50 of a cylinder, as is the case with the arrangement according to FIGS. 7 and 8. Cups are provided in layer 51, which are in the first shape 53 and are designated in the second form with 53 '. In addition, a wear protection layer 52 is applied to the outside of the layer 51. The wear protection layer 52 is only a few μm thick and suitably consists of TiN, TiAlN or TiCN.

Eine weitere Variante zeigt Fig. 12. Bei dieser Anordnung sind in die Außenfläche eines harten Kernes 60 eines Zylinders Vertiefungen 61 eingearbeitet. Die Schicht 62 aus einem Werkstoff mit temperaturabhängigem Formgedächtnis ist als dünnwandige, auf den Kern aufgebrachte Hülse ausgebildet. In dem ersten in Fig. 12 links dargestellten Formzustand bildet somit die Schicht 62 einen Teil eines Zylindermantels. Nach Oberführung der Schicht 62 in den zweiten Formzustand durch Erwärmung bilden sich im Bereich der Vertiefungen 61 Näpfchen 63. Dabei sind die Vertiefungen 61 so bemessen, daß sie die Näpfchen 63 bildende Schicht 62 aufnehmen. Diese Ausgestaltung ist nicht nur für Rasterwalzen sondern auch für Tiefdruckformzylinder geeignet. Grundsätzlich besteht bei dieser Variante auch die Möglichkeit, daß die Schicht 62 bereits im ersten Formzustand flachere Näpfchen bildet, sowie dies bei der Anordnung gemäß Fig. 7 und 8 der Fall ist. Dann ist sie für Rasterwalzen verwendbar.A further variant is shown in FIG. 12. In this arrangement, depressions 61 are machined into the outer surface of a hard core 60 of a cylinder. The layer 62 made of a material with a temperature-dependent shape memory is designed as a thin-walled sleeve applied to the core. In the first shape state shown on the left in FIG. 12, the layer 62 thus forms part of a cylinder jacket. After the layer 62 has been brought into the second shape by heating, wells 63 are formed in the area of the depressions 61. The depressions 61 are dimensioned such that they accommodate the layer 62 forming the wells 63. This configuration is not only suitable for anilox rollers but also for gravure cylinders. Basically, in this variant there is also the possibility that the layer 62 forms flatter cells in the first shape, as is the case with the arrangement according to FIGS. 7 and 8. Then it can be used for anilox rollers.

Claims (10)

1. Druckwerk für eine Druckmaschine mit einem mit Näpfchen versehenen, mit einer Rakel zusammenwirkenden, farbführenden Zylinder, dadurch gekennzeichnet, daß auf den Kern (6, 27, 32, 50, 60) des Zylinders (1, 23, 30) zumindest eine die Näpfchen (18, 29, 34, 53, 63) enthaltende Schicht (8, 28, 33, 51, 62) aus einem Werkstoff mit einem temperaturabhängigen Formgedächtnis aufgebracht ist und eine ein- und ausschaltbare Temperiereinrichtung (9, 26, 35 bis 40) für den Mantel vorgesehen ist.1. Printing unit for a printing press with a cup provided, cooperating with a doctor blade, ink-guiding cylinder, characterized in that on the core (6, 27, 32, 50, 60) of the cylinder (1, 23, 30) at least one Layer (8, 28, 33, 51, 62) containing cells (18, 29, 34, 53, 63) made of a material with a temperature-dependent shape memory is applied and a temperature control device (9, 26, 35 to 40) that can be switched on and off is provided for the coat. 2. Druckwerk nach Anspruch 1, dadurch gekennzeichnet, daß zwischen der Schicht (8) aus dem Werkstoff mit temperaturabhängigem Formgedächtnis und dem Kern (6) des Zylinders (1) eine poröse, volumenveränderbare Zwischenschicht (7) angeordnet ist.2. Printing unit according to claim 1, characterized in that between the layer (8) made of the material with temperature-dependent shape memory and the core (6) of the cylinder (1) a porous, volume-changing intermediate layer (7) is arranged. 3. Druckwerk nach Anspruch 2, dadurch gekennzeichnet, daß die Zwischenschicht (7) ebenfalls aus einem Werkstoff mit temperaturabhängigem Formgedächtnis besteht.3. Printing unit according to claim 2, characterized in that the intermediate layer (7) also consists of a material with temperature-dependent shape memory. 4. Druckwerk nach Anspruch 1, dadurch gekennzeichnet, daß die Schicht (62) aus dem Werkstoff mit temperaturabhängigem Gedächtnis als dünnwandige, auf den Kern (60) aufgebrachte Hülse ausgebildet ist, die Außenfläche des Kerns (60) mit Vertiefungen (61) versehen ist, die Vertiefungen (61) der maximalen Näpfchengröße entsprechend bemessen und unter den thermisch verformbaren Teilen der Schicht (62) angeordnet sind.4. Printing unit according to claim 1, characterized in that the layer (62) made of the material with temperature-dependent memory is formed as a thin-walled, on the core (60) sleeve, the outer surface of the core (60) is provided with depressions (61) , the recesses (61) of the maximum size of the cells are dimensioned accordingly and are arranged under the thermally deformable parts of the layer (62). 5. Druckwerk nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß außen auf die Schicht (51) aus dem Werkstoff mit temperaturabhängigem Formgedächtnis eine elastisch verformbare Verschleißschutzschicht (52) aufgebracht ist.5. Printing unit according to one of the preceding claims, characterized in that an elastically deformable wear protection layer (52) is applied externally to the layer (51) made of the material with temperature-dependent shape memory. 6. Druckwerk nach einen der Ansprüche 1 bis 3 oder 6, dadurch gekennzeichnet, daß der Zylinder (1) ein Tiefdruckformzylinder ist.6. Printing unit according to one of claims 1 to 3 or 6, characterized in that the cylinder (1) is a gravure cylinder. 7. Druckwerk nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Zylinder eine Rasterwalze (23) eines Farbwerkes ist.7. Printing unit according to one of claims 1 to 6, characterized in that the cylinder is an anilox roller (23) of an inking unit. 8. Druckwerk nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Temperiereinrichtung (9) einer Vielzahl von nebeneinander angeordneter Heizwiderständen (10) besteht.8. Printing unit according to one of the preceding claims, characterized in that the temperature control device (9) consists of a plurality of heating resistors (10) arranged next to one another. 9. Druckwerk nach einem der Ansprüche 1 bis 6 und 8, dadurch gekennzeichnet, daß die Temperiereinrichtung (26) aus zonenbreiten Heizelementen aufgebaut ist.9. Printing unit according to one of claims 1 to 6 and 8, characterized in that the temperature control device (26) is constructed from zone-wide heating elements. 10. Druckwerk nach einem der Ansprüche 1 bis 6 und 8, dadurch gekennzeichnet daß der Zylinder (30) hohl ausgebildet und der Innenhohlraum (35) an ein auf unterschiedliche Temperaturen einstellbaren Flüssigkeitskreislauf (38) angeschlossen ist.10. Printing unit according to one of claims 1 to 6 and 8, characterized in that the cylinder (30) is hollow and the inner cavity (35) is connected to a liquid circuit (38) adjustable to different temperatures.
EP90120395A 1989-11-18 1990-10-24 Printing unit Expired - Lifetime EP0428893B1 (en)

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DE3938449A DE3938449A1 (en) 1989-11-18 1989-11-18 PRINT WORK
DE3938449 1989-11-18

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JP (1) JPH03176154A (en)
DE (2) DE3938449A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0703093A1 (en) * 1994-09-24 1996-03-27 MAN Roland Druckmaschinen AG Cylinder, preferably for the dampening device of a printing machine
WO2008110434A3 (en) * 2007-03-09 2008-11-06 Oce Printing Systems Gmbh Device for applying a fluid on a printing material
EP2384888A3 (en) * 2010-05-05 2012-02-08 Giesecke & Devrient GmbH Flexographic printing unit, flexographic printing method and printed product created using same
ITVR20100171A1 (en) * 2010-09-08 2012-03-09 Uteco Converting Spa CYLINDER STRUCTURE PARTICULARLY FINISHED FOR FLEXOGRAPHIC PRINTING MACHINES
EP2581227A1 (en) * 2011-10-14 2013-04-17 Bobst Bielefeld GmbH Inking roller and inking roller set for colour proofing

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4137337A1 (en) * 1991-11-13 1993-05-19 Sengewald Karl H Gmbh HIGH PRESSURE METHOD AND APPLICATION DEVICE FOR ITS IMPLEMENTATION
DE4206525C2 (en) * 1992-03-02 2001-05-17 Heidelberger Druckmasch Ag Device for influencing a dampening solution distribution in a printing unit of a printing press
DE4408615C2 (en) * 1994-03-15 1996-01-11 Roland Man Druckmasch Cup roller within an application unit of a rotary printing press
US5524342A (en) * 1994-05-27 1996-06-11 Xerox Corporation Methods for shrinking nickel articles
DE19645934A1 (en) * 1996-11-07 1998-05-14 Roland Man Druckmasch Anilox roller within an order of a rotary printing press
DE19653911C2 (en) * 1996-12-21 2003-03-27 Roland Man Druckmasch Printing machine roller with a color-friendly coating on the roll surface of the roller core, in particular ink roller
US6006665A (en) * 1997-10-30 1999-12-28 Didde Web Press Corporation Pliable anilox roller
US6024907A (en) * 1998-02-02 2000-02-15 Bruce Jagunich Embossing with an endless belt composed of a shape memory alloy
US6092465A (en) * 1998-03-03 2000-07-25 United Container Machinery, Inc. Method and apparatus for providing erasable relief images
DE19901243A1 (en) 1999-01-14 2000-07-20 Heidelberger Druckmasch Ag Meterable anilox roller in a rotary printing machine
DE19925420A1 (en) 1999-06-02 2000-12-07 Voith Sulzer Papiertech Patent Elastic roller and method of making it
DE10001364C2 (en) * 2000-01-14 2002-08-14 Windmoeller & Hoelscher Application roller for transferring a format-appropriate adhesive application
DE10021451A1 (en) * 2000-05-03 2001-11-08 Heidelberger Druckmasch Ag Controlled imaging and deletion of a printing form made of metallic titanium
DE10145403A1 (en) * 2001-07-04 2003-01-16 Any Seyd Ahmadiyan Device for zonal color metering and actuator with an actuator wire made of a shape memory alloy
US6779444B2 (en) 2001-08-01 2004-08-24 Heidelberger Druckmaschinen Ag Printing form and process for producing the printing form
DE10213012B4 (en) * 2001-08-01 2011-08-11 Heidelberger Druckmaschinen AG, 69115 Method for producing a printing form
US6663215B2 (en) 2001-10-25 2003-12-16 Hewlett-Packard Company, L.P. Printhead service station
EP1415805A1 (en) * 2002-10-28 2004-05-06 Hauni Maschinenbau AG Printing apparatus with tempering unit
PT1493552E (en) * 2003-07-01 2006-06-30 Delicarta Spa EQUIPMENT AND METHOD FOR RELIEF RELEVATION OF MATERIAL ON SHEET
DE102005030918A1 (en) * 2005-06-30 2007-01-04 Man Roland Druckmaschinen Ag Ink applicator roller is for roller printing machine and has at least one ink source from which roller receives ink, with roller provided with metal core
CN1939721B (en) * 2005-09-27 2010-12-15 海德堡印刷机械股份公司 Press temperature controlling method
DE102006040746B4 (en) * 2005-09-27 2017-04-27 Heidelberger Druckmaschinen Ag Method for tempering a printing press
US7762188B2 (en) * 2005-09-30 2010-07-27 Xerox Corporation Reimageable printing member
US7814830B2 (en) * 2005-11-07 2010-10-19 Xerox Corporation Printing system using shape-changing materials
DE102006031682A1 (en) * 2006-07-08 2008-01-10 Man Roland Druckmaschinen Ag Flexographic printing roller and flexographic printing process
DE102007041203A1 (en) 2006-10-11 2008-04-24 Man Roland Druckmaschinen Ag Short inking unit for a processing machine
US20080240794A1 (en) * 2007-03-26 2008-10-02 Research Laboratories Of Australia Pty Ltd Printing machine incorporating plastic metering roller
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DE102009007343A1 (en) * 2009-02-04 2010-08-05 OCé PRINTING SYSTEMS GMBH Arrangement for transporting e.g. liquid developer to electrographic printing device for printing e.g. paper, has transportation unit whose surface is designed such that offset of color medium is limited in liquid film
DE102014001970A1 (en) * 2014-02-13 2015-08-13 Heidelberger Druckmaschinen Ag Assembly of a sheet or web-shaped substrate processing machine
ES2701477T3 (en) * 2014-11-05 2019-02-22 Bobst Mex Sa Procedures for producing a female stamping tool, stamping tools, stamping module and method and stamping machine equipped with said tools
CN104698688B (en) * 2015-04-03 2017-08-01 合肥京东方光电科技有限公司 Friction roller and its application method
CN105807500B (en) 2016-05-31 2019-03-12 京东方科技集团股份有限公司 Transfer device and transfer method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3382798A (en) * 1965-10-21 1968-05-14 Homer L. Bishop Method of shaping the image bearing surface of printing plates
US3654864A (en) * 1970-01-16 1972-04-11 Energy Conversion Devices Inc Printing employing materials with variable volume
US4793041A (en) * 1979-05-03 1988-12-27 Jerome D. Jenkins Transfer roll with ceramic-fluorocarbon coating containing cylindrical ink holes with round, beveled entrances
DE3167878D1 (en) * 1980-12-04 1985-01-31 Dainippon Printing Co Ltd Sleeve-type gravure printing cylinder and method and apparatus for its assembly
DE3046757C2 (en) * 1980-12-12 1985-09-12 W.C. Heraeus Gmbh, 6450 Hanau Gravure cylinder
US4603634A (en) * 1985-02-04 1986-08-05 Rockwell International Corporation Copper and nickel layered ink metering roller
DE3706011A1 (en) * 1987-02-25 1988-09-08 Roland Man Druckmasch SHORT COLOR PLANT
DE3832160A1 (en) * 1988-09-22 1990-04-12 Roland Man Druckmasch RAKELFARBWERK

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0703093A1 (en) * 1994-09-24 1996-03-27 MAN Roland Druckmaschinen AG Cylinder, preferably for the dampening device of a printing machine
WO2008110434A3 (en) * 2007-03-09 2008-11-06 Oce Printing Systems Gmbh Device for applying a fluid on a printing material
EP2384888A3 (en) * 2010-05-05 2012-02-08 Giesecke & Devrient GmbH Flexographic printing unit, flexographic printing method and printed product created using same
ITVR20100171A1 (en) * 2010-09-08 2012-03-09 Uteco Converting Spa CYLINDER STRUCTURE PARTICULARLY FINISHED FOR FLEXOGRAPHIC PRINTING MACHINES
EP2428361A1 (en) * 2010-09-08 2012-03-14 Uteco Converting S.p.A. Anilox roller, particularly for flexographic printing machines
AU2011218777B2 (en) * 2010-09-08 2014-04-24 Uteco Converting S.P.A. Anilox roller, particularly for flexographic printing machines
RU2572583C2 (en) * 2010-09-08 2016-01-20 Утеко Конвертинг С.П.А. Anilox roll, in particular, for flexographic printing machines
US9555619B2 (en) 2010-09-08 2017-01-31 Uteco Converting S.P.A. Anilox roller, particularly for flexographic printing machines
EP2581227A1 (en) * 2011-10-14 2013-04-17 Bobst Bielefeld GmbH Inking roller and inking roller set for colour proofing

Also Published As

Publication number Publication date
EP0428893B1 (en) 1995-10-04
JPH03176154A (en) 1991-07-31
DE59009741D1 (en) 1995-11-09
US5233921A (en) 1993-08-10
DE3938449A1 (en) 1991-05-23
EP0428893A3 (en) 1991-12-11
DE3938449C2 (en) 1993-02-11

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